444 Mr. It. I'^. rmuer on Fossorial nymeyxoplera. 



base of the clypeus bj a distance ahnost equal to the com- 

 bined length of the second and third joints of the flagellutn. 

 'J'horax very closely punctured ; median segment more 

 deeply punctured than tlie thorax, without an impressed 

 median line, clothed with short, erect, black liairs. First 

 dorsal segment finely and rather closely jiunctured, the four 

 following segments more closely punctured ; sixth dorsal 

 segment with very sparse and large setigerous punctures, 

 narrowly truncate at the apex, the lateral margins near the 

 apex distinctly carinate. B.isal joint of the fore tarsus with 

 seven spines. 



ILih. Yapi, Gold Coast [Simpson). 



This may be distinguished from all other species of the 

 iridentatus group with similar colouring of the wings by the 

 black hairs of t'.ie median segment. From fcnestratus, Sm., 

 which occurs in the same district, it is also distinguished by 

 the puncturation of the first dorsal segment, by the very 

 different sculpture of the sixth dorsal segment, and colour- 

 differences. Tlie colour of the abdomen separates it from 

 poscihpterus, HandL, mw/tii, Guer., and amcenus, Sm. The 

 sculpture of the sixth dorsal segment seems to be peculiar to 

 this species, all other allied species iiaving that segment 

 much more closely punctured. 



Stizus khigii, Sm. 



Larra apicalis, Klug, Symb. phys. tab. xlvi. fig. 13 (1845). 5. 

 Larra kluyii, Sm. Cat. Ilym. B.M. iv. p. -340 (1856). 



A female specimen from Magadi Junction, British East 

 Africa, has the two a[)ical dorsal segments yellow-brown, 

 with the sides of the third and fourth segments and a spot on 

 each side near the apex of the second segment yellow. I 

 look on this as a colour- variety only, though it may possibly 

 be of subspecific importance. 



Subfamily Labrinjs. 

 Tachytes adndrabilis, sp. n. 



5 . Nigra ; fronte argenteo-pubescente, abdomine segmentia dor- 

 salibus aureo-pubescentibus, area pygidiali fusco-aureo-setosa ; 

 alis anticis infuscatis, posticis subhyalinis, veuis nigris. 



Long. 23 mm. 



$ . Clypeus scarcely convex, the apical margin almost 

 transverse, very finely and closelj' punctured, with a few 

 large scattered punctures, clothed with short silver pubes- 



